Newcastle Knights forward Jirah Mormoisea will miss the 2021 NRL season with a ruptured achilles, as reported by The Newcastle Herald.
The incident reportedly occurred during a simple training drill and will result in an expected six-month recovery.
The New Zealand product joined Newcastle from Melbourne in 2018 and impressed with his development.
The 22-year old started 2020 on a development contract before being promoted to the club's top 30 squad.
He signed a two-year extension last year, tying him to Newcastle until the end of 2022.
Mormoisea is yet to make his NRL debut.